Nissan had their Roox on display, a minicar that originally debut at the Tokyo Motor Show in late 2009.  Despite its small size, Nissan has marketed their Roox minicar as the most spacious four-seater in its class.  With the minicar tuning craze that is seen all over Japan, especially at TAS, we can only think that Nissan has itself another winner with the Roox.  For the Noth America market however, we’re not too sure – we probably won’t ever set our eyes on one outside of Japan.

GALLERY: Nissan Roox

Over the years Wald International has solidified itself as one of the premiere tuners of luxury vehicles in Japan. Recently the company has expanded its line of styling products to include European vehicles, most noticeably those from Mercedes-Benz and BMW. A trio of Lexus vehicles, a Nissan GT-R, a pair of Mercedes and a BMW 5-Series made for one of the more prominent booths at the 2010 Tokyo Auto Salon.

Known for more outlandish designs, WALD has had success in North America with Mercedes products, due to the more urban style of the parts, which are also high quality and significantly less expensive than parts from German competitors.

We’re used to seeing WALD parts on luxury sedans like the 5 Series and Lexus LS, but we were really taken aback by the wild kit WALD offers for the Lexus RX crossover.

GALLERY: WALD International at the Tokyo Auto Salon

While many Japanese aftermarket tuners are taking on the newest models including many of them turning towards European applications, J’s Racing has stuck to what they know best: Hondas. The company’s booth wasn’t overwhelmingly large, but it was clear that J’s Racing is aware of the new Hybrid-tuning craze, displaying its own version of a tuned Insight, complete with light-weight RAYS wheels, an aero kit, lowered suspension and some nice Recaro seats inside. It even featured a unique combination of decals that gave it a widebody look.

Next to this Insight sat a car that represents the other extreme at Honda, the now out-of-production S2000. This model featured the J’s Racing widebody kit that is anything but subtle and has appeared on more than a few cars and more than a few magazine covers on this side of the Pacific.

GALLERY: J’s Racing Honda Insight and S2000

There is no doubt that the Toyota Prius is the heavy favorite at TAS 2010.  Literally every single booth has one and it’s hard to take 20 steps without spotting another tuned Prius.  Toyota had their own to impress with the Prius Custom Plus Concept taking a very futuristic hold to the Prius design.  The front end is as aggressive as ever, with uniquely designed wheels and plenty of carbon fiber.  Who would have ever thought a widebody Prius could still be aerodynamic in saving gas?  Next to the Custom Plus Concept was a Tom’s-tuned Prius that was mild at best next to its counterpart – but much more in-line to what Prius consumers would enjoy.

GALLERY: Toyota Prius Custom Plus Concept and Tom’s Prius

Nissan never fails to impress at Tokyo Auto Salon and 2010 was no exception to the rule. In-house tuning company NISMO showed off its offerings for the brand’s most popular performance platforms, the FairladyZ, Skyline Coupe and Skyline Sedan, or as they’re known in North America: the Nissan 370Z, Infiniti G37 Coupe and G37 Sedan. All three carry the “Sporty Package” option from Nissan which looks to include a mild performance increase though a new sporty exhaust system, as well as a new lip kit for both the NISMO Skline Coupe and Sedan. The Skyline Sedan package also looks to include some additional LED fog lights.

As for the NISMO 370Z, that model is already offer in the U.S. after being introduced at last year’s New York Auto Show. This NISMO edition takes the Z to an even higher level in every performance category with 350hp – an increase of 18 ponies over the stock Z. Torque is up as well, but just slightly, to 276 ft-lbs – an increase of 6 ft-lbs. Power is also achieved at a higher rpm with the 3.7-liter V6 strung-out to 7400 rpm to acheive maximum horsepower, as opposed to the stock cars, 7000 rpm max power level.

To give the car even better track performance, Nissan gave it a standard limited slip differential and stiffened up the chassis with special “body dampers” on the front frame rail and below the rear cargo area. And of course, the car comes with a NISMO springs and a big NISMO strut tower bars front and rear. The front springs are 15 percent stiffer and rear springs are 10 percent stiffer, with the new strut bars incresing stifness by 15 and 50 percent respectively.

As expected, the stock brakes are replaced with front 4-piston calipers and 14-inch rotors and rear two-piston calipers and 13.8-inch rotors. Those big brake sit inside a set of amazing looking 19-inch NISMO wheels. Manufactured by RAYS forged, the new wheels measure 19×9.5-inches up front and 19×10.5-inches in the rear witt front 245/40/19 tires and rear 285/35/19 tires.

Finally, the NISMO Z gets some styling additions including a new front bumper, side skirts, rear bumper and rear spoiler that are all functional, reducing lift on the front axle and increasing downforce in the rear.

GALLERY: NISMO 370Z

GALLERY: NISMO Skyline Coupe

GALLERY: NISMO Skyline Sedan

As much as the Japanese love modifying and tuning their cars, enthusiasts in the land of the rising sun love to get their hands on a fine German luxury car. While names like Brabus might be known best in Germany, Benz-tuner Carlsson has a huge following in Japan, thanks in part to its smart marketing efforts – like always displaying at the Tokyo Auto Salon.

Always a show staple, Carlsson was dressed to impress at TAS 2010 with an impressive corral of vehicles ranging from a modified Mercedes McLaren SLR 722, to a pair of modified and personalized Smart Cars.

In addition to these, the German tuner also has on display one of its newest packages for the 2010 Mercedes-Benz E-Class, including a complete aero kit, exhaust system, lowering kit for the suspension and interior accessories.

GALLERY: Carlsson at the 2010 Tokyo Auto Salon

Showing off Toyo Tires’ Proxes C1S rubber was a Lexus IS-F sporting a very innovative vinyl wrap.  From far the car looked to be a matte silver, but up close the wrap has a brushed aluminum theme.  Another interesting piece to this IS-F was the Hamann styling.  Famous for tuning European automobiles, it seems as if Hamann has taken a liking to the Japanese market.  It only makes sense, as many more European tuners are turning towards the Japanese vehicles and Japanese tuners are turning towards European vehicles.

GALLERY: Toyo Tires IS-F

With the introduction of Porsche’s luxury sedan to the market, it’s no surprise that the aftermarket has already jumped on this platform.  Fairy Design based out of Japan has taken their Panamera and designed quite the attractive body kit for it.  Gone is the traditional Porsche front bumper styling in exchange for something much more noticeable, aggressive and fitting to the Panamera’s bodylines.  A set of 21-inch HRE wheels in a matte black finish does a great job flowing the front lip, side skirts and rear diffuser into one attractive package.

GALLERY: Fairy Design Porsche Panamera

Seen at the booth of wheel manufacturer RAYS Engineering at the 2010 Tokyo Auto Salon was a nicely tuned Prius by ASI. Called the ASI Green Prius, this car is part of a new line of ASI tuning kits aimed at hybrid models. Currently it also includes a kit for the Honda Insight.

Sporting a green-accented Lexus badge, this Prius went through some pretty aggressive styling for a hybrid. Along with the aggressive front end, new side skirts and a small rear lip spoiler are plenty of carbon fiber accents and a nicely lowered stance.

This year’s Tokyo Auto Salon will undoubtedly be known for its excess hybrid tuning with every booth sporting a modified Toyota Prius of some sort. The ASI Green model was definitely one of the nicest we stumbled upon.

GALLERY: ASI Green Toyota Prius

It has been over a decade since North America was introduced to Honda’s infamous Integra Type-R. At the 2010 Tokyo Auto Salon, Honda is showing off two versions of its tuned Civic Type-R; one in hatchback form and another in sedan form. The white paint scheme with red badging that has become synonymous with the Type-R was prevalent in addition to Sports Modulo products on the sedan. For those that have been kept in the dark, Modulo is the new custom brand name of Honda Access Corporation, manufacturer of Honda aftermarket products.

As for the hatchback, it was designed and built specifically for the European market, but after receiving such rave reviews (especially from the buff books in the U.K. like TopGear, EVO and CAR) Honda has decided to offer the three-door in its home market. Powered by a 2.0-liter 4-cylinder it makes 198-hp at 7500 rpm and 142 ft-lbs of torque at 5600 rpm. With a curb weight of just under 2,800 lbs, a firm suspension and Honda’s typical driving dynamics, the Civic Type-R is sure to prove popular.

GALLERY: Honda Civic Type-R Euro

GALLERY: Honda Civic Tye-R Sports Modulo